wctomb(3) — Справочная страница Linux

wctomb(3)               Library Functions Manual               wctomb(3)

НАЗВАНИЕ

       wctomb - convert a wide character to a multibyte sequence

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <stdlib.h>

       int wctomb(char *s, wchar_t wc);

ОПИСАНИЕ

       If s is not NULL, the wctomb() function converts the wide
       character wc to its multibyte representation and stores it at the
       beginning of the character array pointed to by s.  It updates the
       shift state, which is stored in a static anonymous variable known
       only to the wctomb() function, and returns the length of said
       multibyte representation, that is, the number of bytes written at
       s.

       The programmer must ensure that there is room for at least
       MB_CUR_MAX bytes at s.

       If s is NULL, the wctomb() function resets the shift state, known
       only to this function, to the initial state, and returns nonzero
       if the encoding has nontrivial shift state, or zero if the
       encoding is stateless.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       If s is not NULL, the wctomb() function returns the number of
       bytes that have been written to the byte array at s.  If wc can
       not be represented as a multibyte sequence (according to the
       current locale), -1 is returned.

       If s is NULL, the wctomb() function returns nonzero if the
       encoding has nontrivial shift state, or zero if the encoding is
       stateless.

АТТРИБУТЫ

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌──────────────────────────────┬───────────────┬────────────────┐
       │ Interface                    │ Attribute     │ Value          │
       ├──────────────────────────────┼───────────────┼────────────────┤
       │ wctomb()                     │ Thread safety │ MT-Unsafe race │
       └──────────────────────────────┴───────────────┴────────────────┘

ВЕРСИИ

       The function wcrtomb(3) provides a better interface to the same
       functionality.

СТАНДАРТЫ

       C11, POSIX.1-2008.

ИСТОРИЯ

       POSIX.1-2001, C99.

ПРИМЕЧАНИЯ

       The behavior of wctomb() depends on the LC_CTYPE category of the
       current locale.

СМОТРИТЕ ТАКЖЕ

       MB_CUR_MAX(3), mblen(3), mbstowcs(3), mbtowc(3), wcrtomb(3),
       wcstombs(3)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
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       2024-06-26.  If you discover any rendering problems in this HTML
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       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                      wctomb(3)

Страницы, ссылающиеся на эту: MB_CUR_MAX(3), mbstowcs(3), mbtowc(3), wcstombs(3), wctob(3), locale(7), unicode(7)